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(2011 DW)
Classification: Aten [NEO]          SPK-ID: 3557844
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2753130448533335 1.642e-06  
a .8397247446010032 5.6107e-09 au
q .6085375683262133 1.3749e-06 au
i 25.08402633751646 0.00024637 deg
node 159.5554633271182 1.2704e-05 deg
peri 152.6463686936804 0.00021222 deg
M 130.7562779823544 0.00043469 deg
tp 2459098.414537126165
(2020-Sep-05.91453713)
0.00034034 TDB
period 281.0631137691154
0.77
2.8169e-06
7.712e-09
d
yr
n 1.280851105548232 1.2837e-08 deg/d
Q 1.070911920875793 7.1554e-09 au
  Orbit Determination Parameters
   # obs. used (total)      103  
   data-arc span      3656 days (10.01 yr)  
   first obs. used      2011-02-23  
   last obs. used      2021-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .41637  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-27 05:50:58  

Additional Information
 Earth MOID = .0331454 au 
 Jupiter MOID = 4.24004 au 
 T_jup = 6.896 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 22.87   n/a E2021-DA1  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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